---Isn’t it time you went to bed, Mike?
---I _____ painting all afternoon, so I have to finish my homework now.
A. have been practicing B. have practiced
C. was practicing D. had practiced
______ is no debating that the Dallas Mavericks will defeat the Washington Wizards in the next game.
A. It B. As
C. That D. There
---I have looked for my keys everywhere, but I can’t find them.
---Sorry to hear that. You _____ them somewhere.
A. must lose B. should lose
C. must have lost D. should have lost
---What makes him so excited these days?
---________ a key university.
A. Admitted into
B. Admitting to
C. Having been admitted into
D. Being admitted to
---You didn’t lock the back door.
---You are wrong. I ______.
A. have locked it B. lock it myself
C. did lock it D. do lock it
If you don’t know what you want, you might _______ getting something you don't want.
A. end up B. pick up
C. turn up D. give up
